Struct AesKw 

pub struct AesKw<C> { /* private fields */ }

AES Key Wrapper (KW), as defined in RFC 3394.

Implementations

impl<C: BlockCipherEncrypt<BlockSize = U16>> AesKw<C>

pub fn wrap_key<'a>( &self, key: &[u8], buf: &'a mut [u8], ) -> Result<&'a [u8], Error>

Wrap key and write result to buf.

Returns slice which points to buf and contains wrapped data.

Length of data must be multiple of IV_LEN and bigger than zero. Length of buf must be bigger or equal to data.len() + IV_LEN.

pub fn wrap_fixed_key<N>(&self, key: &Array<u8, N>) -> Array<u8, Sum<N, IvLen>>

where N: ArraySize + NonZero + Add<IvLen> + Rem<IvLen>, Sum<N, IvLen>: ArraySize, Mod<N, IvLen>: Zero,

Wrap fixed-size key key and return wrapped key.

This method is roughly equivalent to:

const fn check_key_size(n: usize) -> usize {
    assert!(n != 0 && n % IV_LEN == 0);
    0
}

pub fn wrap_fixed_key<const N: usize>(
    &self,
    key: &[u8; N],
) -> [u8; N + IV_LEN]
where
    [(); check_key_size(N)]: Sized,
{ ... }

but uses hybrid_array::Array instead of built-in arrays to work around current limitations of the const generics system.

impl<C: BlockCipherDecrypt<BlockSize = U16>> AesKw<C>

pub fn unwrap_key<'a>( &self, wkey: &[u8], buf: &'a mut [u8], ) -> Result<&'a [u8], Error>

Unwrap data and write result to buf.

Returns slice which points to buf and contains unwrapped data.

Length of data must be multiple of IV_LEN and bigger than zero. Length of buf must be bigger or equal to data.len().

pub fn unwrap_fixed_key<N>( &self, wkey: &Array<u8, Sum<N, IvLen>>, ) -> Result<Array<u8, N>, IntegrityCheckFailed>

where N: ArraySize + NonZero + Add<IvLen> + Rem<IvLen>, Sum<N, IvLen>: ArraySize, Mod<N, IvLen>: Zero,

Unwrap key in data and return unwrapped key.

This method is roughly equivalent to:

const fn check_key_size(n: usize) -> usize {
    assert!(n != 0 && n % IV_LEN == 0);
    0
}

fn unwrap_fixed_key<const N: usize>(
    &self,
    data: &[u8; N + IV_LEN],
) -> [u8; N]
where
    [(); check_key_size(N)]: Sized,
{ ... }

but uses hybrid_array::Array instead of built-in arrays to work around current limitations of the const generics system.

Trait Implementations

impl<C: Clone> Clone for AesKw<C>

fn clone(&self) -> Self

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl<C: Copy> Copy for AesKw<C>

impl<C: Debug> Debug for AesKw<C>

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<C> InnerInit for AesKw<C>

fn inner_init(cipher: Self::Inner) -> Self

Initialize value from the inner.

impl<C> InnerUser for AesKw<C>

type Inner = C

Inner type.

impl<C: PartialEq> PartialEq for AesKw<C>

fn eq(&self, other: &Self) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl<C: PartialEq> StructuralPartialEq for AesKw<C>